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Scoring criteria for distribution of collagen type I/III, and pigmentation in the liver.
| Score | Distribution of collagen type I/III | Pigmentation |
| 0 | None | None |
| 1 | Thin collagen fibers are occasionally observed in the foci of hepatocytic changes and/or periportal area | Light |
| 2 | Distinct collagen fibers are observed in the foci of hepatocytic changes and/or periportal area | Moderate |
| 3 | Thick and distinct collagen fibers are observed in the foci of hepatocytic changes and periportal area | Severe |
